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February 2019
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Quantifying Magnitude of GroupLevel Differences in Patient Experiences with Health Care

Objective: Review approaches assessing magnitude of differences in patient experience scores between different providers.

Data Sources: 1990–2016 literature.

Study Design: Systematic literature review.

Data Extraction Methods: Of 812 articles mentioning “CAHPS,” “patient experience,” “patient satisfaction,” “important(ce),” “difference,” or “significance,” we identified 79 possible articles, yielding 35 for data abstraction. We included 22 articles measuring magnitude of differences in patient experiences.

Principal Findings We identified three main ways of estimating magnitude of differences in patient experience scores: (1) by distribution/range of patient experience variable, (2) against external anchor, and (3) comparing a difference in patient experience on one covariate to differences in patient experience on other covariates.

Conclusions: We suggest routine estimation of magnitude in patient experience research. More work is needed documenting magnitude of differences between providers to make patient experience data more interpretable and usable.

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